User Manual

Table Of Contents
WAVELAB
9 – 180 Off-line processing
Loudness Normalizer
This processing tool allows you to specify the loudness of a file. Because
it relates to loudness as opposed to maximum peak level, this tool works
quite differently than the Level Normalizer. A typical application is to spec-
ify a level, e.g. -12dB, and the Loudness Normalizer will process the loud-
ness to match this level.
Like Gain Change, increasing the loudness to a certain value might intro-
duce clipping, which is to be avoided. To remedy this, a peak limiter (the
Peak Master plug-in) can be part of the process. The Loudness Normal-
izer will smartly raise the loudness and limit peaks in the signal at the
same time (if needed), to achieve the desired loudness.
In case of stereo files, both channels are processed independently.
This process happens over two stages; first an analysis and then the final
rendering.
The results of this analysis can be seen in the Statistics. If all seems well, you can apply the
processing using the Render button.
The Loudness Normalizer is also available in the Batch processor, which
is logical as one of the primary applications is to process different files to
equal loudness.